[asan] move GetRSS from tsan to sanitizer_common

llvm-svn: 223730

compiler-rt/lib/sanitizer_common/sanitizer_common.h

@@ -66,6 +66,7 @@ bool MemoryRangeIsAvailable(uptr range_start, uptr range_end);
 void FlushUnneededShadowMemory(uptr addr, uptr size);
 void IncreaseTotalMmap(uptr size);
 void DecreaseTotalMmap(uptr size);
+uptr GetRSS();
 
 // InternalScopedBuffer can be used instead of large stack arrays to
 // keep frame size low.

compiler-rt/lib/sanitizer_common/sanitizer_linux.cc

@@ -379,6 +379,34 @@ static void ReadNullSepFileToArray(const char *path, char ***arr,
   }
   (*arr)[count] = 0;
 }
+
+uptr GetRSS() {
+  uptr fd = OpenFile("/proc/self/statm", false);
+  if ((sptr)fd < 0)
+    return 0;
+  char buf[64];
+  uptr len = internal_read(fd, buf, sizeof(buf) - 1);
+  internal_close(fd);
+  if ((sptr)len <= 0)
+    return 0;
+  buf[len] = 0;
+  // The format of the file is:
+  // 1084 89 69 11 0 79 0
+  // We need the second number which is RSS in 4K units.
+  char *pos = buf;
+  // Skip the first number.
+  while (*pos >= '0' && *pos <= '9')
+    pos++;
+  // Skip whitespaces.
+  while (!(*pos >= '0' && *pos <= '9') && *pos != 0)
+    pos++;
+  // Read the number.
+  uptr rss = 0;
+  while (*pos >= '0' && *pos <= '9')
+    rss = rss * 10 + *pos++ - '0';
+  return rss * 4096;
+}
+
 #endif
 
 static void GetArgsAndEnv(char*** argv, char*** envp) {

compiler-rt/lib/sanitizer_common/sanitizer_mac.cc

@@ -317,6 +317,10 @@ MacosVersion GetMacosVersion() {
   return result;
 }
 
+uptr GetRSS() {
+  return 0;
+}
+
 }  // namespace __sanitizer
 
 #endif  // SANITIZER_MAC

compiler-rt/lib/sanitizer_common/sanitizer_win.cc

@@ -375,6 +375,10 @@ uptr internal_rename(const char *oldpath, const char *newpath) {
   UNIMPLEMENTED();
 }
 
+uptr GetRSS() {
+  return 0;
+}
+
 // ---------------------- BlockingMutex ---------------- {{{1
 const uptr LOCK_UNINITIALIZED = 0;
 const uptr LOCK_READY = (uptr)-1;

compiler-rt/lib/tsan/rtl/tsan_platform.h

@@ -251,7 +251,6 @@ uptr ALWAYS_INLINE GetThreadTraceHeader(int tid) {
 void InitializePlatform();
 void FlushShadowMemory();
 void WriteMemoryProfile(char *buf, uptr buf_size, uptr nthread, uptr nlive);
-uptr GetRSS();
 
 void *internal_start_thread(void(*func)(void*), void *arg);
 void internal_join_thread(void *th);

compiler-rt/lib/tsan/rtl/tsan_platform_linux.cc

@@ -118,33 +118,6 @@ void WriteMemoryProfile(char *buf, uptr buf_size, uptr nthread, uptr nlive) {
       nlive, nthread);
 }
 
-uptr GetRSS() {
-  uptr fd = OpenFile("/proc/self/statm", false);
-  if ((sptr)fd < 0)
-    return 0;
-  char buf[64];
-  uptr len = internal_read(fd, buf, sizeof(buf) - 1);
-  internal_close(fd);
-  if ((sptr)len <= 0)
-    return 0;
-  buf[len] = 0;
-  // The format of the file is:
-  // 1084 89 69 11 0 79 0
-  // We need the second number which is RSS in 4K units.
-  char *pos = buf;
-  // Skip the first number.
-  while (*pos >= '0' && *pos <= '9')
-    pos++;
-  // Skip whitespaces.
-  while (!(*pos >= '0' && *pos <= '9') && *pos != 0)
-    pos++;
-  // Read the number.
-  uptr rss = 0;
-  while (*pos >= '0' && *pos <= '9')
-    rss = rss * 10 + *pos++ - '0';
-  return rss * 4096;
-}
-
 #if SANITIZER_LINUX
 void FlushShadowMemoryCallback(
     const SuspendedThreadsList &suspended_threads_list,

compiler-rt/lib/tsan/rtl/tsan_platform_mac.cc

@@ -50,10 +50,6 @@ void FlushShadowMemory() {
 void WriteMemoryProfile(char *buf, uptr buf_size, uptr nthread, uptr nlive) {
 }
 
-uptr GetRSS() {
-  return 0;
-}
-
 #ifndef TSAN_GO
 void InitializeShadowMemory() {
   uptr shadow = (uptr)MmapFixedNoReserve(kShadowBeg,

compiler-rt/lib/tsan/rtl/tsan_platform_windows.cc

@@ -31,10 +31,6 @@ void FlushShadowMemory() {
 void WriteMemoryProfile(char *buf, uptr buf_size, uptr nthread, uptr nlive) {
 }
 
-uptr GetRSS() {
-  return 0;
-}
-
 void InitializePlatform() {
 }